From 122c9794a65cb6d0579ec41f6fb3b4848e5c989b Mon Sep 17 00:00:00 2001
From: taiyang-li <654010905@qq.com>
Date: Sun, 4 Aug 2024 17:04:04 +0800
Subject: [PATCH] remove useless codes

---
 src/Functions/map.cpp | 71 -------------------------------------------
 1 file changed, 71 deletions(-)

diff --git a/src/Functions/map.cpp b/src/Functions/map.cpp
index 994a03374c9..4b1e41af796 100644
--- a/src/Functions/map.cpp
+++ b/src/Functions/map.cpp
@@ -130,77 +130,6 @@ public:
         ColumnsWithTypeAndName map_args{{key_array, key_array_type, ""}, {value_array, value_array_type, ""}};
         return function_map_from_arrays->build(map_args)->execute(map_args, result_type, input_rows_count);
     }
-    /*
-    ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t input_rows_count) const override
-    {
-        size_t num_elements = arguments.size();
-        if (num_elements == 0)
-            return result_type->createColumnConstWithDefaultValue(input_rows_count);
-
-        const auto & result_type_map = static_cast<const DataTypeMap &>(*result_type);
-        const DataTypePtr & key_type = result_type_map.getKeyType();
-        const DataTypePtr & value_type = result_type_map.getValueType();
-
-        Columns columns_holder(num_elements);
-        ColumnRawPtrs column_ptrs(num_elements);
-
-        for (size_t i = 0; i < num_elements; ++i)
-        {
-            const auto & arg = arguments[i];
-            const auto to_type = i % 2 == 0 ? key_type : value_type;
-
-            ColumnPtr preprocessed_column = castColumn(arg, to_type);
-            preprocessed_column = preprocessed_column->convertToFullColumnIfConst();
-
-            columns_holder[i] = std::move(preprocessed_column);
-            column_ptrs[i] = columns_holder[i].get();
-        }
-
-        /// Create and fill the result map.
-
-        MutableColumnPtr keys_data = key_type->createColumn();
-        MutableColumnPtr values_data = value_type->createColumn();
-        MutableColumnPtr offsets = DataTypeUInt64().createColumn();
-
-        size_t total_elements = input_rows_count * num_elements / 2;
-        keys_data->reserve(total_elements);
-        values_data->reserve(total_elements);
-        auto & offsets_data = assert_cast<ColumnUInt64 &>(*offsets).getData();
-        offsets_data.resize_exact(input_rows_count);
-
-        IColumn::Offset current_offset = 0;
-        if (num_elements == 2)
-        {
-            for (size_t i = 0; i < input_rows_count; ++i)
-            {
-                ++current_offset;
-                offsets_data[i] = current_offset;
-            }
-            keys_data->insertRangeFrom(*column_ptrs[0], 0, input_rows_count);
-            values_data->insertRangeFrom(*column_ptrs[1], 0, input_rows_count);
-        }
-        else
-        {
-            for (size_t i = 0; i < input_rows_count; ++i)
-            {
-                for (size_t j = 0; j < num_elements; j += 2)
-                {
-                    keys_data->insertFrom(*column_ptrs[j], i);
-                    values_data->insertFrom(*column_ptrs[j + 1], i);
-                }
-
-                current_offset += num_elements / 2;
-                offsets_data[i] = current_offset;
-            }
-        }
-
-        auto nested_column = ColumnArray::create(
-            ColumnTuple::create(Columns{std::move(keys_data), std::move(values_data)}),
-            std::move(offsets));
-
-        return ColumnMap::create(nested_column);
-    }
-    */
 
 private:
     ContextPtr context;